I have my doubts.
Obama will ride hugely popular Senator Amy Klobuchar's coattails as she is projected to get 65% of the vote in her re-election bid to the US Senate.
Minnesota is very uppity; but less partisan than other states. That's why a 3rd party candidate like Jessie Ventura came along and that's why it'll happen again probably. But a lot of people split their votes between the parties there; even when they are often very different. And there is never a sure fire way of knowing what'll tickle there fancy. Look at Franken, Pawlenty, Ventura; all very different.
Obama was hugely popular in Minnesota in 08 and he still only won by 9 points. I expect that margin to be naturally diminished just like in every state he won. Then, Romney is advertising in the Twin Cities market to reach the Western Wisconsin market and that's going to have an effect.
If Romney doesn't pull it off; I believe he could have. He just needed to have visited there. Minnesotans love that personal stumping.
Also, the economy has been very tough in Minnesota. I think there'll a lot of blue Dog Dems in Minnesota going for Romney. I think the key would be, if independents exceed poll projections. It's only at 13 percent for Romney if I recall correctly.